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How Much Does a Home Security System Cost? (2026 Guide)

Home security systems cost $0–$600 upfront for equipment. Monthly monitoring runs $10–$50/month. Over 3 years, total cost ranges from $360 to $2,400 depending on the system.

Updated Mar 2026Home & Energy$200–$1,200/yr
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Home Security Cost Breakdown

SystemUpfront CostMonthly FeeContractBest For
Ring Alarm$100–$350$0–$20/moNoneDIY, no commitment
SimpliSafe$150–$500$18–$28/moNoneBest overall value
ADT$0–$200$28–$50/mo3 yearsProfessional install
Vivint$0–$400$30–$50/mo5 yearsSmart home integration
Google Nest$200–$600$6–$20/moNoneGoogle Home users
Brinks$0–$200$25–$40/mo3 yearsADT alternative
How Costs Compare
32%
8%
14%
41%
Monitored alarm system 32%
Smoke/CO detectors 8%
Deadbolts + solid doors 5%
Smart locks + cameras 14%
Bundled smart home system 41%

Pro Tips for Home Security

SimpliSafe is the best value for most homes — No contract, professional monitoring for $18–$28/month, and easy DIY install. The equipment pays for itself in insurance savings.
Check insurance discounts before buying — Call your insurer before installing. A monitored system can save $100–$300/year on homeowner's insurance — enough to offset the monitoring fee entirely.
Avoid long contracts — ADT and Vivint lock you into 3–5 year contracts at $35–$50/month. SimpliSafe and Ring offer the same protection with no contract and 30–40% lower monthly fees.
Cameras deter crime better than alarms — Visible outdoor cameras (Ring, Arlo) deter burglars more effectively than window stickers. Most break-ins happen in broad daylight by opportunists.

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Does Home Security Lower Insurance?

Discount TypeTypical SavingsRequirements
Monitored alarm system5–20% discount24/7 professional monitoring
Smoke/CO detectors2–5% discountHardwired preferred
Deadbolts + solid doors1–3% discountVaries by insurer
Smart locks + cameras2–8% discountSome insurers require certification
Bundled smart home system10–20% discountVaries widely by insurer

Frequently Asked Questions

How much does a home security system cost per month?▼
Self-monitored systems are free monthly (just equipment cost). Professional monitoring costs $10–$20/month for basic and $25–$50/month for full cellular monitoring. ADT and Vivint are on the high end; SimpliSafe and Ring are on the low end.
Is ADT worth the cost?▼
ADT offers reliable professional monitoring but charges $28–$50/month with a 3-year contract — significantly more than SimpliSafe ($18–$28/month, no contract). For most homes, SimpliSafe provides comparable protection at lower cost.
Do home security systems really prevent burglaries?▼
Research shows homes with visible security systems are 2.7× less likely to be burglarized. Burglars overwhelmingly target easy opportunities — visible cameras and alarm signs are major deterrents, regardless of brand.
What's the difference between DIY and professional installation?▼
DIY systems (Ring, SimpliSafe) take 1–3 hours to install yourself and have no install fee. Professional installation costs $100–$400 but includes professional placement and system configuration. Most people are fine with DIY.
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📊 Data Sources & Methodology
Pricing from SimpliSafe, Ring, ADT, and Vivint websites. Insurance discount data from Insurance Information Institute. Consumer review data from CNET and PCMag. Updated March 2026. Learn more about our methodology.